I dyed my hair 2 days ago, and had an allergic reaction from the black hair dye, and now my scalp has scab-like things on it all over, back front...Etc

even in some parts around my ears...

Well on the bottom right part of my neck on my hairline.

It seems I have a swollen lymph node....


And I just noticed the lymph node tonight.

Is it possible the swollen lymph node is because of an infection from my scalp?

I got really worried when I had the swollen lymph node.

Anyone?